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ultrafiltrate
ultrafiltration
ultrahigh frequency
ultraism
ultralarge crude carrier
ultralight
ultramafic
ultramarine
ultramicrometer
ultramicroscope
ultramicroscopic
ultramodern
ultramontane
ultramontanism
ultramundane
ultranationalism
ultrashort
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ultrastructure
ul·tra·struc·ture [ últrə strùkchər ]


noun 
Definition:
 
detailed structure: the minute structure of an organic substance or object that becomes evident only under electron microscopy

ul·tra·struc·tur·al [ ùltrə strúkchərəl ] adjective
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